Projection apparatus



PROJECTION APPARATUS Filed Aug. 30. 1926 3 Sheets-Sheet Attorney Aug.28, 1928. 1,682,326

s. H. ELlAsoN I PROJ ECTION APPARATUS Filed Aug. 30, 1926 3 Sheets-Sheet2 [n venvtor .5. flz sow,

Attorney Augszs, 192:5.-

s. H. LlAsoN PROJECTION APPARATUS 3 Sheets-Sheet Filed Aug. 30, 1926 [nventor 6*. /71 ZZzas om,

Attorney Patented Aug. 28,1928.

v UNITED STATES SID E. ELIASON, 0F PORTLAND, OREGON.

f raome'rroiv APPARATUS. I

Application led August 30, 192.6. Serial No. 132,558.

My present invention has to do with .apparatus for projecting upon ascreen or other appropriate surface, pictures, symbols, or lefrends foradvertising purposes.

t'The general object of my invent-ion is the provision of an apparatusof the kind vstated that is, at once, extremelysimple and inexpensive inconstruction, reliable 1n operation, and adapted to be operated at a lowcost;

To the attainment of the foregoineP the invention consists in theimproveinentthereinafter described and definitely claimed.

In the accompanying drawings, forming part of this specification, and inwhich Figure 1 is a side elevation of the a paratus constituting thepreferred embo iment of my invention.

Figure 2 is a horizontal section of the apparatus taken on the line 2-2of Flgure 1, looking downwardly.

Figure 3- is a vertical and transverse section of the apparatus takenvthrough the center of the plate carrying wheel and showing the frontpart of the wheel in elevation. y

Figure 4 is an enlarged transverse fragmentary section on the planeindicated by the line 44 of F igure 1 looking toward the right.

Figure 5 is a fragmentary enlarged elevation illustrative of the mannerin which the plates are arranged upon and secured to the periphery ofthe wheel. p

Figure 6 is an enlarged fragmentary section taken on the'plane indicatedby the line 6-6 of Figure 5, and showing the manner of securing theplate on the wheel, and this detachably.

Figure 7 is an enlarged fragmentary section taken on the plane indicatedby the line 7-7 of Figure 4, looking downwardly, and showing a portionof the endless chain in proper relation to one of the :imperforateflicker members of the apparatus.

Similar numerals of reference designate corresponding parts in all ofthe views of the drawings.

Among other elements, the apparatus comprises a main frame 1 which maybe of the construction illustrated or of any other constructionconsonant with the purposes of my invention. Included in the said frame1 is a base 2 and superposed upon the base is an electric motor 3, thearmature shaft 4 of which is connected with reducing gearing ofconventional or any other improved type arranged in a housing 5, thesaid reducing shaft 6 which carries a crank disc 7 and also ca rries acircumferentially grooved wheel 8, Flfrures 1 and 2.

lounted to rotate between standards comprised in the main frame l is aWheel 9 of iollow type, the said Wheel 9 being provided adjacent to itsperiphery with lateral pins 10 spaced apart and arranged in circularsets.

Superposed upon and fixed to the base 2 is a block 11 with an inclinedupper surface readily understood from Figures 1 and 2,

the detent 15 is connected to abar 17, and the said bar 17 is connected,in turn, to the crank disc 7 and hence it will be readily understoodthat rotation of the crank disc 7 will be attended by reciprocation ofthe detent 15. It will also be understood from the arrangement describedthat on the rearward idle stroke of the detent 15 the teeth 16 willclear the pins 10 adjacent to and im'- mcdiately in rear ot' the teeth16.

It Will be apparent from the foregoing that when my novel apparatus isin operation', the wheel 9 will be turned about its axis step by stepand that there will be a dwell between each movement of the wheel 9,this for the retention for a particular period of time of one of theplates carried by the wheel 9 in alignment or registration gearing beingconnected, in turn, with a.

with the projecting means hereinafter described.

It will be understood by comparison of Figures 1, 3, 5 and6, that thewheel 9 is provided with cross rods 18 adjacent to the periphery of thewheel and that the end portions of the said rods 18 are preferablyemployed to form the before mentioned lateral pins 10. p

A spring keeper, best shown in Figure 1 and numbered 19, serves byengaging the cross rods 18 in succession to hold the wheel 9 againstcasual 1n )veir1ent, and it willbe understood in this connection that inthe anti-clockwise movement of the wheel 9 the stress exerted upon thewheel 9 1s all that is necessary to move the cross rods 18 into and outof engagement with the spring fin er 19. O

e cross rods 18 also serve 1n the detachable securing of plates 20 onthe peripheral portion of t e wheel 9, the said plates 20 being designedto carry adyertis ing'matter or other matter to be projected. The use ofthe rods 18 for the purpose stated will be fully understood when itis'stated that the plates 2O are each provided adjacent to their cornerswith apertures 21, and that spring keepers 22 are associated with therods 18 and the apertured plates 2O for the retention of the plates 20in working position, and this in such manner that any lone of the plates2O may be expeditiously and easily removed and yet there is no liabilityincident to the use of the apparatus pf any oie of the plates 20 beingcasually dislace p As will be readily understood by comparison ofthetigures of the drawings, particularly Figures 5 and 6, each ofthespring fasteners 22 is in the form of a curvillnear strip of appropriatespring metal, and 1s provided with .a central seat 23 to receive one rod18 and is also provided with end portions 24 on which are projections 25def ilgned to take into plate apertures 21.

'securely hold the plates 20, and

anifestly when arranged as illustrated, the fasteners 22 may be dependedupon to et when it is desired to remove any one o the lates 20 the samemay be accomplished a ter a little stress is applied to the ends offastener members 22 and the said ends are moved outwardly so as todisengage the projections 25 from the plates to be removed.

It also follows from the foregoing that plates 20 may be placed andsecured on the wheel 9 quite as quickly and easily as the plates 2O arereleased and removed in the manner described.

As shown in Figure 1 my novel apparatus also comprises a lamp 30,preferably of incandescent electric type, an intensifying lens 31 backof the said lamp 30, condensing lenses 32 in front o the lamp 30 and aprojecting lens 33 disposed in front of the condensing lenses and alsoin front of and, in spaced relation to the peripher of the wheel 9.

In the space back o the projecting lens 33 and between the same and theperipheral portion of the wheel 9 is arranged the iickermechainsmfof myimprovement, the said icker mechanism being of course, continously movedwhile the apparatus is in action. The said flicker mechanism comrises aplurality of spaced imperforate lades 45, and a belt 46, referabl ofsprocket chain type, by whic said b ades are carried and moved, the saidbelt 46 being mounted upon a plurality of sprocket gears 47 and 48, thesprocket gear 48 bein iixed to and movable with a sheave 49 wiich is'driven from the before mentioned sheave or pulley 8 through the mediumof a belt 50 that is passed under guide ulleys or sheaves 51, Figures 1and 2. The blades 45a are oiset as indicated by 46 so as to clear thesprocket gears 47 and 48.

As shown in Figure 5 each of the plates 20, the central portion of whichis transparent as represented is provided adjacent my novel means forproducing said' eil'ect is asl extremely simple, inexpensive anddurable,

.and in this connection I would have it understood that there issufficient contrast between the apertured and adjacent transparent partsof the plates 20 to assure the production of the said flicking effect.

j It will be appreciated from the foregoing that my novel projectingapparatus as a whole is simple and inexpensive in construction, easy tooperate, is reliable in operation, and is free of complicated anddelicate arts such as are likely to get out of order agter a shortperiod of use.

` I have entered into a detailed description of the construction andrelative arrangement of the parts embraced in the present and preferredembodiment of my invention in order to impart a full, clear, and exactunderstanding of said embodiment. I do not desire, however, to beunderstood as Hunting myself to the precise structure disclosed, myinvention being defined by my appended claims within the scope of whichstructural changes or modifications may-be made without departing frommy invention.

Having thus described-the invention, what I claim as new and desire tosecure by Letters Patentiszl 1. In aprojecting apparatus and incombination, light projecting means, said means comprising a projectinglens, movable blades v spaced apart back-of said lens, a wheel havingits peripheral portion disposed back of said movable blades and inprojecting position behind the lens, means for detachably securingplates bearing subjects to be projected, on the peripheral portion ofthe wheel, said plates characterized by apertures adjacent to theiredges forming a border, means for turning the wheel at intervals throughparts of a revolution, yielding means for preventing casual turning ofthe wheel, and means for moving said blades.

2. In combination, a frame, inclined guides l thereon, a reciprocatorydetent having portions in parallelism movable in said guides and alsohaving lateral lingers, a rotary crank disc connected with and adaptedto transmit motion to said detent, and. a wheel mounted in the frame andhaving at intervals on its peripheral portion and at its sides, lateralpins adapted to be enga ed by the det-ent lingers whereby on the wor ingstroke of the detent the wheel will be turned through a part of arevolution.

, 3. In combination, a frame, a wheel mounted in the frame and havingspaced projections on its peripheral portion, longitudinally inclinedguide means carried by the frame, a detent movable in said guide meansand having laterally projecting means arranged to cooperate with saidprojections of the wheel for the turning of the wheel step by step, anda rotary crank disc connected with and adapted to reciprocate thedetent.

4. In combination, a projecting apparatus wheel having spaced cross barsin its peripheral portion, plates adapted to be carried by theperipheral portion of the Wheel and having apertures adjacent to theircorners, and spring fasteners having central depressions adapted toreceive the cross rods of the wheel and also having end portionsequipped with projections adapted to be sprung into and out of theapertures of the plates.

,5. In a projecting apparatus, and in combination, a frame, a projectinglens, a belt, blades carried by said belt and spaced apart and arrangedand movable back of the projecting lens, a wheel having a peripheralportion movable back of the said blades and adapted to carry latesbearing subject matter to be projected said wheel equipped with meansfor cooperation .with a detent, a reciprocatory detent for actingagainst said means of the wheel, a crank disc connected with and adaptedto actuate said detent, a pulley movable with said crank disc, and mealsconnecting said pulley and said bladecarrying belt for the movement ofthe latter by the former.

6. In a projecting apparatus, and in combination, a projecting lens, anelement carrying a subject to be projected, said element having spacedapertures in a series about the subject bearing portion thereof, lightmeans,

means carrying said element, and light obscuring means movable betweenthe projecting lens and said element and adapted to momentarily cut offthe light from the lens and by cooperation with the apertures of saidelement'produce a flickering or lightchasing border about the subjectprojected.

7. In a projecting apparatus, and in combination, a projecting lens, anelement carrying a subject to be projected, said element having spacedapertures in a series about the subject bearing portion thereof, lightmeans, movable means carrying said element, and light obscuring meansmovable between the projecting lens and said element and adapted tomomentarily cut olf the light from' the lens and by cooperation with theapertures of said element produce a flickering or light chasing borderabout the subject projected; the means carrying said element and themeans for obscuring the light being operable by a common driver.

8. In a projecting apparatus, and in combination, a projecting lens, anelement carrying a subject to be projected, said element having spacedapertures in a series about the subject bearing portion thereof, lightmeans, movable means carrying said element, and light obscuring' meansmovable between the projecting lens and said element and adapted tomomentarily cut olf the light from the lens and by cooperation with theapertures of said element produce a fiickering or light-chasingborderabout the subject projected; the said light obscur-ing means made up ofa belt, and blades spaced apart on said belt and movable in successionback of and through positions in coincidence with the projecting means.

9.' In a projecting apparatus, and in combination, a projectin0 lens, adiaphanous element carrying a subject to be projected, said element avmgspaced apertures therethrough in a series about the subjectbearingportion thereof, light means, and light obsc'uring means movable betweenthe projecting lens and said element and adapted to momentarily cut oli'the light from the lens and by cooperation with the apertures of saidelements produce a flickering border about the subject projected.

In testimony whereof I affix m signature.

SID H. E IASON.

